java string转为xml

java

    一、使用最原始的javax.xml.parsers,标准的jdk api  

// 字符串转XML

String xmlStr = \"......\";

StringReader sr = new StringReader(xmlStr);

InputSource is = new InputSource(sr);

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

DocumentBuilder builder=factory.newDocumentBuilder();

Document doc = builder.parse(is);

//XML转字符串

TransformerFactory tf = TransformerFactory.newInstance();

Transformer t = tf.newTransformer();

t.setOutputProperty(\"encoding\",\"GB23121\");//解决中文问题,试过用GBK不行

ByteArrayOutputStream bos = new ByteArrayOutputStream();

t.transform(new DOMSource(doc), new StreamResult(bos));

String xmlStr = bos.toString();

这里的XML DOCUMENT为org.w3c.dom.Document

  二、使用dom4j后程式变得更简单

// 字符串转XML

String xmlStr = \"......\";

Document document = DocumentHelper.parseText(xmlStr);

// XML转字符串

Document document = ...;

String text = document.asXML();

这里的XML DOCUMENT为org.dom4j.Document

  三、使用JDOM

JDOM的处理方式和第一种方法处理很类似

//字符串转XML

String xmlStr = \".....\";

StringReader sr = new StringReader(xmlStr);

InputSource is = new InputSource(sr);

Document doc = (new SAXBuilder()).build(is);

//XML转字符串

Format format = Format.getPrettyFormat();

format.setEncoding(\"gb2312\");//配置xml文档的字符为gb2312,解决中文问题

XMLOutputter xmlout = new XMLOutputter(format);

ByteArrayOutputStream bo = new ByteArrayOutputStream();

xmlout.output(doc,bo);

String xmlStr = bo.toString();

这里的XML DOCUMENT为org.jdom.Document

  四、JAVASCRIPT中的处理

//字符串转XML

var xmlStr = \".....\";

var xmlDoc = new ActiveXObject(\"Microsoft.XMLDOM\");

xmlDoc.async=false;

xmlDoc.loadXML(xmlStr);

//能够处理这个xmlDoc了

var name = xmlDoc.selectSingleNode(\"/person/name\");

alert(name.text);

//XML转字符串

var xmlDoc = ......;

var xmlStr = xmlDoc.xml

这里的XML DOCUMENT为javascript版的XMLDOM

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